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Petroleum distillates (naphtha)

Synonyms & Trade Names
Aliphatic petroleum naphtha, Petroleum naphtha, Rubber solvent
CAS No.
8002-05-9
RTECS No.
SE7449000
DOT ID & Guide
 
Conversion
1 ppm = 4.05 mg/m3
IDLH
1100 ppm [10%LEL]
See: 8002059
Exposure Limits
NIOSH REL
: TWA 350 mg/m3 C 1800 mg/m3 [15-minute]
OSHA PEL
: TWA 500 ppm (2000 mg/m3)
Measurement Methods

NIOSH 1550
See: NMAM or OSHA Methods
Physical Description
Colorless liquid with a gasoline- or kerosene-like odor. [Note: A mixture of paraffins (C5 to C13) that may contain a small amount of aromatic hydrocarbons.]
MW:
99 (approx)
BP:
86-460°F
FRZ:
-99°F
Sol:
Insoluble
VP:
40 mmHg (approx)
IP:
?
Sp.Gr:
0.63-0.66
Fl.P:
-40 to -86°F
UEL:
5.9%
LEL:
1.1%
Flammable Liquid
Incompatibilities & Reactivities
Strong oxidizers
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, nose, throat; dizziness, drowsiness, headache, nausea; dry cracked skin; chemical pneumonitis (aspiration liquid)
Target Organs
Eyes, skin, respiratory system, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations

NIOSH

Up to 850 ppm:
(APF = 10) Any supplied-air respirator

Up to 1100 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece

Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also: INTRODUCTION
 
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